mode property
Mode is how much work to do: search (fast, one pass), news (recency biased), research (a plan and several rounds) or deep (the widest survey). Empty means research.
Please note: This property should have been non-nullable! Since the specification file does not include a default value (using the "default:" property), however, the generated source code must fall back to having a nullable type. Consider adding a "default:" property in the specification file to hide this note.
Implementation
String? mode;